2011946291 has 2 divisors, whose sum is σ = 2011946292. Its totient is φ = 2011946290.

The previous prime is 2011946267. The next prime is 2011946381. The reversal of 2011946291 is 1926491102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011946291 - 2⁶ = 2011946227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2011946201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005973145 + 1005973146.

It is an arithmetic number, because the mean of its divisors is an integer number (1005973146).

Almost surely, 2^2011946291 is an apocalyptic number.

2011946291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011946291 is an equidigital number, since it uses as much as digits as its factorization.

2011946291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 2011946291 is about 44854.7242885295. The cubic root of 2011946291 is about 1262.4246356476.

The spelling of 2011946291 in words is "two billion, eleven million, nine hundred forty-six thousand, two hundred ninety-one".